Improved water pump bottom valve

Abstract

The utility model relates to the technical field of water pump bottom valves, in particular to an improved water pump bottom valve. Comprising a bottom valve pipe, a flange is fixedly connected to the upper end of the bottom valve pipe, an adjusting device is arranged on the surface of the inner wall of the bottom valve pipe and comprises a sealing assembly and a filtering assembly, the sealing assembly comprises a fixing ring, the arc surface of the fixing ring is fixedly connected with the surface of the inner wall of the bottom valve pipe, and the inner wall of the fixing ring is slidably connected with a limiting column; the cross section of the limiting column is I-shaped, a plurality of through holes are formed in the arc surface of the limiting column, a sliding rod is fixedly connected to the surface of the end, close to the flange, of the limiting column, an auxiliary frame slidably penetrates through the arc surface of the sliding rod, and the two ends of the auxiliary frame are fixedly connected with the two sides of the inner wall of the bottom valve pipe; one end of the cage frame abuts against the surface of the bottom end of the bottom valve pipe. The improved water pump bottom valve has the advantage that the water pump bottom valve can be conveniently operated and used.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump bottom valve technical field especially relates to an improved water pump bottom valve. BACKGROUND

[0002] The improved water pump bottom valve is an optimal design for improving the efficiency, durability and stability of the water pump during operation, and the main function of the bottom valve is to prevent water backflow after the water pump stops running, maintain the normal operation of the water pump system, especially important in self-priming pumps, and more common in water pump operation.

[0003] Prior art such as the utility model with announcement number CN221856975U discloses an improved structure water pump bottom valve, which comprises a bottom plate, a valve body in the form of a cylinder, and a filter cartridge vertically fixed between the bottom plate and the valve body, a valve core in the form of a T is vertically arranged in the filter cartridge, the upper end of the valve core penetrates the valve body, a guide cylinder is vertically arranged on the bottom plate, and the lower end of the guide cylinder is sealingly and fixedly connected with the bottom plate; the lower end of the valve core is slidingly arranged in the guide cylinder, and a spring is further arranged in the guide cylinder to make the valve core have a downward movement trend to close the upper port of the valve body; a protective cylinder is further sleeved and fixed on the lower end of the valve core, and the inner wall of the upper end of the protective cylinder and the outer wall of the lower end of the valve core are matched and attached together, and the lower end of the protective cylinder is sleeved on the guide cylinder. The improved structure water pump bottom valve is stable in operation.

[0004] In the operation of the water pump, it is found that when the bottom valve at one end of the water pump inlet pipe is used, it is usually necessary to fill in the water guide to prevent water backflow after the water pump stops running, which causes the water pump to fail to smoothly suck water when starting, damages the water pump, and further causes the problem of inconvenient operation and use of the water pump bottom valve. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art that when the bottom valve at one end of the water pump inlet pipe is used, it is usually necessary to fill in the water guide to prevent water backflow after the water pump stops running, which causes the water pump to fail to smoothly suck water when starting, damages the water pump, and further causes the problem of inconvenient operation and use of the water pump bottom valve.

[0006] In order to solve the above technical problems, the utility model provides a kind of improved water pump bottom valve, comprising: bottom valve pipe, the upper end of the bottom valve pipe is fixedly connected with flange, the inner wall surface of the bottom valve pipe is provided with adjusting device, the adjusting device includes sealing assembly and filter assembly, the sealing assembly includes fixed ring, the circular arc surface of the fixed ring is fixedly connected with the inner wall surface of bottom valve pipe, the inner wall of the fixed ring is slidably connected with limit post, the section of the limit post is in the shape of H, the circular arc surface of the limit post is provided with a plurality of through holes, the surface of the one end of the limit post close to flange is fixedly connected with slide bar, the circular arc surface of the slide bar is slidably penetrated with auxiliary frame, the both ends of the auxiliary frame are fixedly connected with the inner wall both sides of bottom valve pipe.The effect reached by the above components is that when the water pump is operated, the bottom valve pipe at one end of the water inlet pipe is used for water diversion, at this time, the sealing assembly provided on the inner wall of the bottom valve pipe can store the residual water flow, so as to ensure the normal start and operation of the subsequent operation of the water pump.

[0007] Preferably, the filter assembly includes a cage, one end of the cage abuts the bottom end surface of the bottom valve pipe, the circular arc surface of the cage is provided with a plurality of linking holes, the both side surfaces of the cage are fixedly connected with mounting columns, the bottom end of the bottom valve pipe is provided with mounting holes on both sides, the inner wall of the mounting hole is inserted with the circular arc surface of the mounting column, and the circular arc surface of the mounting column is threadedly connected with a mounting shaft.

[0008] The effect reached by the above components is that when the bottom valve pipe at one end of the water inlet pipe of the water pump is operated, in order to avoid pollution by impurities, the filter mechanism can be used for auxiliary operation, and the cage fixed at the bottom end of the bottom valve pipe is operated, which helps to better protect the use of the water pump.

[0009] Preferably, the inner wall bottom end of the limit post is fixedly connected with a drainage block, and the section of the drainage block is in the shape of a sharp cone.

[0010] The effect reached by the above components is that the drainage block with the section in the shape of a sharp cone can better guide and transport the water flow in the limit post.

[0011] Preferably, the circular arc surface of the one end of the limit post close to the flange is fixedly connected with a sealing ring, the surface of the fixed ring is provided with a sealing groove, and the inner wall of the sealing groove abuts the surface of the sealing ring.

[0012] The effect reached by the above components is that the sealing ring and the sealing groove can be connected, so as to conveniently store and seal the water in the bottom valve pipe.

[0013] Preferably, the drainage block is a stainless steel block, and the section size of the drainage block is matched with the section size of the limit post.

[0014] The effect achieved by the above component is that the drainage block made of stainless steel can be used for a long time and rust is avoided.

[0015] Preferably, the arc surface of the mounting column is sleeved with a protective ring, and the surface of the protective ring abuts against the lower surface of the mounting shaft.

[0016] The effect achieved by the above component is that the mounting shaft can be extruded and protected by the protective ring, so that the mounting shaft is prevented from loosening and falling off.

[0017] Preferably, the two side surfaces of the cage frame are provided with limiting grooves, and the bottom end of the bottom valve pipe is fixedly connected with limiting blocks on both sides, and the surface of the limiting block abuts against the inner wall of the limiting groove.

[0018] The effect achieved by the above component is that the bottom valve pipe and the cage frame can be quickly docked and fixed through the abutment between the limiting block and the limiting groove.

[0019] Compared with the related art, the improved water pump bottom valve has the following beneficial effects:

[0020] The improved water pump bottom valve provided by the utility model realizes the sealing and opening of the inner wall of the bottom valve pipe through the operation of the adjusting device, can effectively realize the opening and closing operation of the inner wall of the whole bottom valve pipe through the sliding regulation of the limiting column position on the inner wall of the fixing ring, so that the whole bottom valve pipe can be conveniently operated and used, and the filter assembly arranged at the bottom end of the bottom valve pipe can be filtered through the connecting hole arranged on the surface of the cage frame, which helps to prevent sundries from entering the pump and damaging the water pump impeller. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model provides a kind of improved water pump bottom valve structure schematic view;

[0022] Figure 2 The Figure 1 The cross section structure schematic view of the three-dimensional structure shown in the drawing;

[0023] Figure 3 The Figure 1 The structure schematic view of the sealing assembly shown in the drawing;

[0024] Figure 4 The Figure 3 The local structure schematic view of the sealing assembly shown in the drawing;

[0025] Figure 5 The Figure 1 The structure schematic view of the filter assembly shown in the drawing.

[0026] Label in the figure: 1, bottom valve pipe; 2, adjusting device; 21, sealing assembly; 211, fixed ring; 212, limiting column; 213, through hole; 214, drainage block; 215, sealing ring; 216, sealing groove; 217, auxiliary frame; 218, slide rod; 22, filter assembly; 221, cage frame; 222, link hole; 223, limiting block; 224, limiting groove; 225, mounting column; 226, mounting shaft; 227, protective ring; 228, mounting hole; 3, flange. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0029] Please refer to Figures 1 to 5 The utility model embodiment provides a kind of improved water pump bottom valve, comprising: bottom valve pipe 1, the upper end of bottom valve pipe 1 is fixedly connected with flange 3, the inner wall surface of bottom valve pipe 1 is provided with adjusting device 2.

[0030] In the embodiment of the utility model, please refer to Figure 3 、 Figure 4 And Figure 5The adjusting device 2 comprises a sealing assembly 21 and a filtering assembly 22, the sealing assembly 21 comprises a fixed ring 211, the arc surface of the fixed ring 211 is fixedly connected with the inner wall surface of the bottom valve pipe 1, the inner wall of the fixed ring 211 is slidably connected with a limiting column 212, the cross section of the limiting column 212 is in the shape of an I-beam, the arc surface of the limiting column 212 is provided with a plurality of through holes 213, the surface of one end of the limiting column 212 close to the flange 3 is fixedly connected with a sliding rod 218, the arc surface of the sliding rod 218 is slidably penetrated through an auxiliary frame 217, the two ends of the auxiliary frame 217 are fixedly connected with the inner wall of the bottom valve pipe 1, the filtering assembly 22 comprises a cage frame 221, one end of the cage frame 221 abuts against the bottom end surface of the bottom valve pipe 1, the arc surface of the cage frame 221 is provided with a plurality of linking holes 222, the two side surfaces of the cage frame 221 are fixedly connected with mounting columns 225, the bottom end of the bottom valve pipe 1 is provided with mounting holes 228 on the two sides, the inner wall of the mounting hole 228 is inserted with the arc surface of the mounting column 225, the arc surface of the mounting column 225 is screwedly connected with a mounting shaft 226, the inner wall bottom end of the limiting column 212 is fixedly connected with a drainage block 214, the cross section of the drainage block 214 is in the shape of a sharp cone, the arc surface of one end of the limiting column 212 close to the flange 3 is fixedly connected with a sealing ring 215, the surface of the fixed ring 211 is provided with a sealing groove 216, the inner wall of the sealing groove 216 abuts against the surface of the sealing ring 215, the drainage block 214 is a stainless steel block, the cross section size of the drainage block 214 is matched with the cross section size of the limiting column 212, the arc surface of the mounting column 225 is sleeved with a protective ring 227, the surface of the protective ring 227 abuts against the lower surface of the mounting shaft 226, the two side surfaces of the cage frame 221 are provided with limiting grooves 224, the bottom end of the bottom valve pipe 1 is fixedly connected with limiting blocks 223 on the two sides, the surface of the limiting block 223 is inserted with the inner wall of the limiting groove 224;

[0031] The working principle of the improved water pump bottom valve is as follows: in the process of operating and using the water pump, first, the water inlet part of the bottom valve pipe 1 at one end of the water pump is inserted into the water pumping pool, water is poured, and then the water pump is started; at this time, the sealing assembly 21 in the bottom valve pipe 1 is slid upward under the centrifugal force of the water pump and the water thrust to open and close, so that the water in the pool enters the pump body along the water inlet pipe to pump the water upward; when the water pumping is stopped, the entire sealing assembly 21 is reversely closed under the gravity of the water and the gravity of the sealing assembly 21 in the bottom valve pipe 1, and a certain amount of water is stored in the pump body and the pipeline, so that it is not necessary to pour water again next time when the water pump is started, and the pipeline and the water pump are maintained;

[0032] When pumping water by means of the water pump, the limiting column 212 in the whole fixing ring 211 will be moved by the centrifugal force of the water pump, at this time the bottom end of the limiting column 212 will abut against one side of the fixing ring 211, at the same time the water flow will pass through the limiting column 212, then is transported through the through hole 213, and the sharp conical drainage block 214 fixed at the inner wall bottom end of the limiting column 212 can guide the water flow to be divided, so that the water flow is transported faster, when pumping water is not needed, the whole limiting column 212 will be lowered under the action of gravity, so that the end of the limiting column 212 close to the drainage block 214 abuts against the other side of the fixing ring 211, at the same time the sealing ring 215 and the sealing groove 216 are clamped and sealed, so that a certain amount of water can be stored;

[0033] When pumping water in the whole bottom valve pipe 1, in order to avoid pollution caused by impurities in the water, the filter assembly 22 arranged at the bottom end of the bottom valve pipe 1 can be used for protection, first the cage frame 221 is guided and inserted into the limiting block 223 fixed at the both sides of the bottom end of the bottom valve pipe 1 through the limiting groove 224 arranged at the both sides, at the same time the installation column 225 at the both sides of the cage frame 221 is inserted into the installation hole 228, then the protection ring 227 is sleeved on the arc surface of the installation column 225, finally the installation shaft 226 is rotated to install and fix the position of the whole cage frame 221, at this time the connection hole 222 arranged on the arc surface of the cage frame 221 can be used for filtering protection.

[0034] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed here.

[0035] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An improved foot valve for a water pump, characterized by, The utility model relates to a bottom valve pipe (1), the upper end fixed connection of bottom valve pipe (1) has flange (3), the inner wall surface of bottom valve pipe (1) is provided with adjusting device (2), adjusting device (2) includes sealing assembly (21) and filter assembly (22), sealing assembly (21) includes fixed ring (211), the inner wall surface of fixed ring (211) is fixedly connected with bottom valve pipe (1), the inner wall of fixed ring (211) is connected with limit post (212) slidingly, the section of limit post (212) is I-shaped, the through hole (213) of a plurality of of the arc surface of limit post (212) is seted up, the surface of one end of limit post (212) close to flange (3) is fixedly connected with slide rod (218), the arc surface of slide rod (218) is slidingly penetrated with auxiliary frame (217), the both ends of auxiliary frame (217) are fixedly connected with the inner wall both sides of bottom valve pipe (1). Filter assembly (22) includes cage frame (221), one end of cage frame (221) is in abutment with the bottom end surface of bottom valve pipe (1), the arc surface of cage frame (221) is provided with a plurality of link holes (222), the both side surfaces of cage frame (221) are fixedly connected with mounting post (225), the bottom end both sides of bottom valve pipe (1) are provided with mounting hole (228), the inner wall of mounting hole (228) is inserted with the arc surface of mounting post (225), the arc surface of mounting post (225) is threadedly connected with mounting shaft (226).

2. The improved foot valve for water pump according to claim 1, wherein, The inner wall bottom end of limit post (212) is fixedly connected with drainage block (214), the section of drainage block (214) is pointed cone.

3. The improved foot valve for water pump as claimed in claim 1 wherein, The arc surface of one end of limit post (212) close to flange (3) is fixedly connected with sealing ring (215), the surface of fixed ring (211) is provided with sealing groove (216), the inner wall of sealing groove (216) is in abutment with the surface of sealing ring (215).

4. The improved foot valve for water pump as claimed in claim 1 wherein, Drainage block (214) is stainless steel block, the section size of drainage block (214) is adapted to the section size of limit post (212).

5. The improved foot valve for water pumps according to claim 3, wherein, The arc surface of mounting post (225) is provided with protection ring (227), the surface of protection ring (227) is in abututment with the lower surface of mounting shaft (226).

6. The improved foot valve for water pumps according to claim 2, wherein, The both side surfaces of cage frame (221) are provided with limit slot (224), the bottom end both sides of bottom valve pipe (1) are fixedly connected with limit block (223), the surface of limit block (223) is inserted with the inner wall of limit slot (224).

7. The improved foot valve for water pumps according to claim 2, wherein, ​

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